no factor for M3321932567 from 2^78 to 2^79 [mfaktc 0.17 barrett79_mul32]
no factor for M3321932567 from 2^79 to 2^80 [mfaktc 0.17 barrett92_mul32]

M3321936433 no factor from 60.000 bits to 71.000 bits.

Rodrigo

no factor for M3321933451 from 2^80 to 2^81 [mfaktc 0.17-Win barrett92_mul32]
no factor for M3321933389 from 2^78 to 2^79 [mfaktc 0.17-Win barrett79_mul32]
no factor for M3321933389 from 2^79 to 2^80 [mfaktc 0.17-Win barrett92_mul32]
no factor for M3321933389 from 2^80 to 2^81 [mfaktc 0.17-Win barrett92_mul32]
no factor for M3321933367 from 2^78 to 2^79 [mfaktc 0.17-Win barrett79_mul32]
no factor for M3321933367 from 2^79 to 2^80 [mfaktc 0.17-Win barrett92_mul32]
(and continuing on M3321933367 to 81 bits)

no factor for M3321932767 from 2^79 to 2^80 [mfaktc 0.17 barrett92_mul32]
no factor for M3321932093 from 2^79 to 2^80 [mfaktc 0.17 barrett92_mul32]

no factor for M3321928697 from 2^82 to 2^83 [mfaktc 0.17-Win barrett92_mul32]
no factor for M3321928777 from 2^82 to 2^83 [mfaktc 0.17-Win barrett92_mul32]

Trial-factoring M3321935801 in [2^71, 2^72-1]
M3321935801 has 0 factors in [2^71, 2^72-1].

no factor for M3321933367 from 2^80 to 2^81 [mfaktc 0.17-Win barrett92_mul32]

no factor for M3321933361 from 2^78 to 2^79 [mfaktc 0.17-Win barrett79_mul32]
no factor for M3321933361 from 2^79 to 2^80 [mfaktc 0.17-Win barrett92_mul32]
(continuing, again, to 81 bits on the mad quest to kill off all 78 bit-level TF exponents)

no factor for M3321931993 from 2^79 to 2^80 [mfaktc 0.17 barrett92_mul32]
no factor for M3321931931 from 2^79 to 2^80 [mfaktc 0.17 barrett92_mul32]
(questing against all 79 bit exponents, too, just on a different machine!)

no factor for M3321933233 from 2^80 to 2^81 [mfaktc 0.17-Win barrett92_mul32]

continuing to 83 bits

no factor for M3321933361 from 2^80 to 2^81 [mfaktc 0.17-Win barrett92_mul32]

no factor for M3321929411 from 2^79 to 2^80 [mfaktc 0.17-Win barrett92_mul32]
(This will finish to 81 bits in a few hours, but I'm going home first)

no factor for M3321928601 from 2^82 to 2^83 [mfaktc 0.17-Win barrett92_mul32]
no factor for M3321928699 from 2^82 to 2^83 [mfaktc 0.17-Win barrett92_mul32]
no factor for M3321928927 from 2^82 to 2^83 [mfaktc 0.17-Win barrett92_mul32]
no factor for M3321934241 from 2^82 to 2^83 [mfaktc 0.17-Win barrett92_mul32]

That rounds out level 16.